Ram Mount RAP-B-104U Composite Single Socket Mount with 2.5-Inch Round Base and Diamond Base (Black) Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of marine grade aluminum with a powder coated finish and rubber balls Superior shock and vibration isolation for electronics Unique design provides easy installation, mobility, strength, adjustability and versatility Construction provides a light weight and corrosion resistant product Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of high strength composite and rubber ball Superior shock and vibration isolation for electronics Unique design provides easy installation, mobility, strength, adjustability and versatility Construction provides a light weight and corrosion resistant product